☰

MRLookup

自动提取BibTeX数据并修改BibTeX关键字为AUTHOR_YEAR_TITLE的形式.

// ==UserScript==
// @namespace         vanabeljs
// @name              MRLookup
// @description       Extract BibTeX data automatically and modify BibTeX Key to AUTHOR_YEAR_TITLE.
// @description:ZH-CN 自动提取BibTeX数据并修改BibTeX关键字为AUTHOR_YEAR_TITLE的形式.
// @copyright         2018, Van Abel (https://home.vanabel.cn)
// @license           OSI-SPDX-Short-Identifier
// @version           1.5.4
// @include           */mathscinet/search/publications.html?fmt=bibtex*
// @include           */mathscinet/clipboard.html
// @include           */mrlookup
// @grant             GM_setClipboard
// ==/UserScript==

// ==OpenUserJS==
// @author Van Abel
// ==/OpenUserJS==

/**
 *
 * Please begin typing or paste your Userscript now.
 *
 */

/*The first word to ignore in title*/
var IgnoreStringInTitle = [
	'a',
	'an',
	'on',
	'the',
	'another'
];
function IgnoreStringToRegExp(arr) {
	var regexp = '^(';
	var arrlen = arr.length;
	for (var i = 0; i < arrlen; i++) {
		if (i == arrlen - 1) {
			regexp += '(' + arr[i] + ')';
		} else {
			regexp += '(' + arr[i] + ')|';
		}
	}
	regexp += ')\\s+';
	return regexp;
}//console.log(IgnoreStringToRegExp(IgnoreStringInTitle));
/*split bibdata*/

function parseBibTexLine(text) {
	var m = text.match(/^\s*(\S+)\s*=\s*/);
	if (!m) {
		console.log('line: "' + text + '"');
		throw new Error('Unrecogonised line format');
	}
	var name = m[1];
	var search = text.slice(m[0].length);
	var re = /[\n\r,{}]/g;
	var braceCount = 0;
	var length = m[0].length;
	do {
		m = re.exec(search);
		if (m[0] === '{') {
			braceCount++;
		} else if (m[0] === '}') {
			if (braceCount === 0) {
				throw new Error('Unexpected closing brace: "}"');
			}
			braceCount--;
		}
	} while (braceCount > 0);
	return {
		field: name,
		value: search.slice(0, re.lastIndex),
		length: length + re.lastIndex + m[0].length
	};
}
function parseBibTex(text) {
	var m = text.match(/^\s*@([^{]+){([^,\n]+)[,\n]/);
	if (!m) {
		throw new Error('Unrecogonised header format');
	}
	var result = {
		typeName: m[1].trim(),
		citationKey: m[2].trim()
	};
	text = text.slice(m[0].length).trim();
	while (text[0] !== '}') {
		var pair = parseBibTexLine(text);
		result[pair.field] = pair.value;
		text = text.slice(pair.length).trim();
	}
	return result;
}
var els = document.getElementsByTagName('pre');
for (var i = 0, l = els.length; i < l; i++) {
	var el = els[i];
	var bibdata = parseBibTex(el.innerHTML);
	/*Extract author*/
	//var aureg = new RegExp('(?:(\\w+),(?:[^,}](?!and))+)+', 'g');
	//console.log(audata.match(aureg));
	var audata = bibdata.AUTHOR;

	var cleanreg = new RegExp('[{}\\\\\'"`]', 'g');
	//console.log(cleanreg);
	var au = "";
	while( au!=audata){
		au=audata;
		audata=au.replace(cleanreg, '');
	}
	console.log(au);
	//clean author include \v+space and $\cmd$
	audata = audata.replace(/\\[a-z]\s|(\$.*?\$)|(\\")/gi, '');
	console.log(audata);
	//remove double "," in one name
	audata = audata.replace(/(?:(?:and)?(\w+,\s*\w+\.?)(,.*?)?)+/g, '$1');
	console.log(audata);
	//extract first name
	au = au.replace(/(?:(\w+),(?:[^,}](?!and))+)+/g, '$1');
	//remove and
	au = au.replace(/\s*and\s*/g, '');
	console.log(au);
	/*Extract Year*/
	var year = bibdata.YEAR.replace(cleanreg, '');
	//console.log(year);
	/*Extract Title*/
	var title = bibdata.TITLE;
	//clean \cmd+space
	title = title.replace(/\\\w+\s*/g, '');
	var titleclean = new RegExp(IgnoreStringToRegExp(IgnoreStringInTitle), 'gi');
	//we don't need to clean and, but we need to clean -,{,},: and ,
	//var cleanreg = new RegExp('[{}:-]|,|(\\r\\s*)|(\\n\\s*)', 'g');
	title = title.replace(/[\\\'\"{}:-]|,|(\r\s*)|(\n\s*)/g, '');
	//var cleandollar = new RegExp('\\$.*?\\$', 'g');
	title = title.replace(/\$.*?\$/g, '');
	var titlefinal = title.replace(titleclean, '');
	while (title != titlefinal) {
		//recursively remove the ignore word
		title = titlefinal;
		titlefinal = title.replace(titleclean, '');
	} //var titlereg = new RegExp('(\\w+)(\\s*\\w+)*', 'gi');

	title = title.replace(/(\w+).*$/gi, '$1').replace(/\s*/g, '');
	var bibkey = au + year + title;
	//console.log(bibkey);
	var bibkeyreg = new RegExp('MR\\d+', 'gi');
	el.innerHTML = el.innerHTML.replace(bibkeyreg, bibkey);
	/*click to copy to clipboard*/
	el.addEventListener('click', function () {
		//Actual new line break
		//var linebreakreg = new RegExp('\\r|\\n', 'g');
		var bibdata_lb = this.innerHTML.replace(/\r|\n/g, '\r\n').replace(/^\r\n/g, '').replace(/\s*$/g, '\r\n').replace(/\r\n\r\n/g, '\r\n');
		GM_setClipboard(bibdata_lb);
	});
}

/**
 * auto set bibtex item checked for mrlookup site
 */
var url=location.pathname;
if ("url:contains('mrlookup')") {
	document.getElementsByName('format')[1].checked=1;
}